Antiglare device for automobile headlights



2%, www@ H. R. DRURY ANTIGLARE DEVICE FOR AUTOMOBILE HEADLGHTS FiledSent. 7. w20

Fatented Aug. 28, i923..

aeeeeee HERBERT R. DRURY, F WILLOUGHBY, OHIO.

Anamnese nnvrcn ron. AUTOMOBILE nnenmenrs.

Application filed September To all whom t may concern.'

Be it known Ythat I, HERBERT R. DRURY, a citizen of the United States,residing at Willoughby, in the county of Lake and State of Ohio, haveinvented a certain new and useful' Improvement in Antigl'are Devices forAutomobile Headlights, of which the following is a full, clear, andexact description, reference being had to the accomlo panying drawings.

This invention-relates to. an anti-glare device for automobileheadlights and has for its object the production of a simple andinexpensive device of thishcharacter that may be very convenientlyinserted in headlights 0f the conventional'type; that is inconspicuouswhen occupying its position Within the headlight; and that veryeffectually cuts out or dims those rays which blind and confuse driversof approaching vehicles or -pedestrians, While preserving the fullbrilliancy of the rays that are properly projected by the parabolicreflector upon the roadway a considerable distance in advance of theautomobile, at the same time permitting the direct rays of the lamp tofall upon the road in the limmediate foreground.

These, and other objects which will become apparent as this descriptionp-roceeds, are attained in the embodiment of my invention illustrated inthe accompanying drawing wherein Fig. 1 is a. front elevation of thedevice; Fi 2, a section on the line 2-2 of Fig. l; 'ig. 3 a verticalsection, more or less diagrammatic, through a headlight equipped with myimproved anti-glare device, the section of lthe latter being the same as.in Fig. 2 but showingthe .dimmer in operative position; and F ig.4 aperspective View' of the device showing the form which it assumes whenin the headlight.

The device may be constructed of any suitable material, at the presenttime it being my preference'to employ fiber board, coated with aluminumpaint for vreasons which I shall presently explain. The device iscircular in form to correspond to the outline of the reflector, and itsinterior is cut away to leave a segmental blind 1 that is connectedthrough arcuate arms 2 with.y the extreme lower portion-of asubstantially 7, 1920. Serial No. 408,432:

sector shaped wing 3 having a notch 4 at lts upper end. The wing 3,because of its function, may be referred to as the dimmer.

N ormally, as when not in a headlight, the device 1s flat, `as indicatedin the sectional view of Fig. 2. This feature makes it exceedingly easyto pack, ship and store the devices. When the device occupies itsposition within a headlight 5, its periphery 1s clamped between theopposed edger portions of the reflector 6 and lens 7; and the dimmer 3is pressed into the lowery portion of the reflector,'assuming thegeneral contour thereof, and its notch 4 is engaged bece neath `the lampsupport. l A

From the diagram of Fig. 3 it will be readily seen that the blind lobliterates the reflected rays from the upper portion of the parabolicreflector 6, while thefdimmer 3 70 intercepts the direct 'rays of thelamp that wouldotherwisefall upon and be projected by thelower half ofthe reflector. By coating the device with aluminum paint, ashereinbefore stated, the dimmer 3 will serve as 7e a reflector of loworder to throw ofi subdued rays, Iand by reason of its aluminum color,the device is less conspicuous in the headlight than it otherwise wouldbe as it offers little contrast to thesilver color of the reflector.

Having thus described what I claim is l t 1. An anti-glare device forautomobile headlights consisting of a. circular member ee adapted tohave its peripheral portionl clamped between the opposed edge portionsof the reflector and lens and incorporating a segmental blind,forobliterating the rays reflected by the upper portion of the re-` wflector and a dimmer connected by arcuate stri ps to theends of theblind and designed to be fitted within the lower portion ofthe reflectorand engaged beneath the lamp support in a position to intercept thedirect es rays from the lamp which! are projected toward the lowerportion of the reector.

2. An anti-glare device for automobile headlights constructed of fiberboard and incorporating a segmental blind and a sub- 1w my invention, .f

stantially sector-shaped4 dimmer, and arcu ate arms concentric with thearc of the blind end connecting the ends of the blind with the lowerportion of the dimmer, said arms being adapted to be clamped betweenthe` opposed edge portions of the reflector and 5 lens to hold saiddevice in position with the sector-shaped dimmer within the lowerportion of the reflector in 'e position to in- HERBERT R. DRURY.

